dB to Gain Calculator

This tool converts a dB (deciBel) value to:

  • Linear Power Gain
  • Linear Voltage Gain 

	

			

		

						

				

				

                

			

			
						

		

		






 Gain to dB





Formula





Power gain = 10XdB/10





Voltage gain = 10XdB/20





Note that Gain is a linear value. 





If the input and output power are Pin and Pout respectively, the power gain ratio is Pout/Pin





If the input and output power are Vin and Vout respectively, the voltage gain ratio is Vout/Vin